/* =========================
   FUTURISTIC THEME VARIABLES
   ========================= */
:root {
  --black: #050507;
  --dark-gray: #0f1117;
  --gray: #1a1d29;
  --purple: #7a5cff;
  --blue: #3b82f6;
  --magenta: #d946ef;
  --cyan: #22d3ee;
  --text-main: #e5e7eb;
  --text-muted: #9ca3af;
  --glow-gradient: linear-gradient(135deg, var(--purple), var(--blue), var(--cyan), var(--magenta));
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: radial-gradient(circle at top, #111327, var(--black) 60%);
  color: var(--text-main);
}

/* =========================
   SIDEBAR
   ========================= */
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 260px;
  background: rgba(26,29,41,0.75);
  backdrop-filter: blur(14px);
  border-right: 1px solid rgba(122,92,255,0.25);
  transition: width 0.3s ease;
  overflow: hidden;
  z-index: 1000;
}

.sidebar.collapsed {
  width: 72px;
}

.sidebar .logo {
  padding: 1rem;
  font-size: 1.3rem;
  background: var(--glow-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar nav a {
  display: block;
  padding: 0.8rem 1rem;
  color: var(--text-main);
  text-decoration: none;
}

.sidebar nav a:hover {
  background: rgba(122,92,255,.15);
}

.toggle-sidebar {
  cursor: pointer;
  padding: 0.8rem;
  text-align: center;
}

.main-content {
  margin-left: 260px;
  padding: 2rem;
  transition: margin-left 0.3s ease;
}

.sidebar.collapsed + .main-content {
  margin-left: 72px;
}

/* =========================
   Chat box
   ========================= */
.chat-box {
  border: 1px solid rgba(122,92,255,0.25);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1rem;
  min-height: 200px;
  max-height: 500px;
  overflow-y: auto;
  background: rgba(26,29,41,0.6);
}